diff --git a/Exercise 1/figures/1c.tex b/Exercise 1/figures/1c.tex
new file mode 100644
index 0000000..0e51d63
--- /dev/null
+++ b/Exercise 1/figures/1c.tex	
@@ -0,0 +1,31 @@
+\begin{tikzpicture}[
+    my angle/.style={
+      draw, <->,
+      angle eccentricity=1.3,
+      angle radius=9mm
+    }
+  ]
+
+  % coordinate axis
+  \draw[<->] (-2.5,0) -- (2.5,0);
+  \draw[<->] (0,-2.5) -- (0,2.5);
+
+  % circle
+  \draw (0,0) circle (2cm);
+
+  % coordinates
+  \coordinate (A)  at ( 2,0);
+  \coordinate (B)  at ( 0,2);
+  \coordinate (C)  at (-2,0);
+  \coordinate (D)  at (0,-2);
+
+  %
+  \coordinate                 (O) at ( 0:0);
+
+  % angles
+  \shorthandoff{"}
+  \pic[my angle, "$\frac{-\pi}{2}$"]      {angle = D--O--A};
+  \shorthandon{"}
+
+  \coordinate[pin=300:{$(0,-1)$}] (sinTheta) at (D);
+\end{tikzpicture}
\ No newline at end of file
diff --git a/Exercise 1/main.tex b/Exercise 1/main.tex
index 2095cfd..0008719 100644
--- a/Exercise 1/main.tex	
+++ b/Exercise 1/main.tex	
@@ -7,14 +7,16 @@
 \usepackage[fleqn]{amsmath}
 \usepackage[many]{tcolorbox}
 \usepackage{graphicx}
-\usepackage{parskip}
+\usepackage{textcomp}
 \usepackage{gensymb}
+\usepackage{float}
 
 \definecolor{ntnublue}{RGB}{0,80,158}
 
 \input{../lib/geometry.tex}
 \input{../lib/header.tex}
 \input{../lib/math.tex}
+\usetikzlibrary{angles, quotes}
 
 \hypersetup{
     colorlinks=true,
@@ -30,6 +32,8 @@
 
 \input{../lib/titling.tex}
 
+\setlength{\parindent}{0cm}
+
 \begin{document}
 
   \thispagestyle{plain}
diff --git a/Exercise 1/tasks/1.tex b/Exercise 1/tasks/1.tex
index d707428..b0a0067 100644
--- a/Exercise 1/tasks/1.tex	
+++ b/Exercise 1/tasks/1.tex	
@@ -5,9 +5,15 @@
     \[ -135\degree \cdot \frac{\pi}{180\degree} \approx -2.35  \]
 
   \delo
-    \[ 1,5\pi \cdot \frac{180\degree}{\pi} = 270\deg  \]
+    \[ 1,5\pi \cdot \frac{180\degree}{\pi} = 270\degree  \]
 
-  \delo
+    \delo
     \[ sin\left( \frac{-\pi}{2} \right) = -1\]
 
+    \begin{minipage}{0.42\textwidth}
+      \begin{graphbox}
+        \input{figures/1c.tex}
+      \end{graphbox}
+    \end{minipage}
+
 \end{deloppgaver}
\ No newline at end of file